Lubricating cylinder or elevators.



E. B.& W. H. RIDGWAY.

LUBRICATING CYLINDER OF ELEVATORS.

, APPLICATION men JAN. 22, 1am

Patented Apr. 23, 1918.

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ELLIS n. iarnswnr AND WILLIAM nrnewnv, OFCOATESVILLE, rEnivsYLvAwIn.

L UBRICATING CYLINDER 6F ELEVATORS.

1,263,223.. j p y Original application filed October 6,

To all whom it may concern:

Be it known that we, ELLIs B. RIDGWAY and WILLIAM H. RIDGWAY, citizens of the United States, and residents of Coatesville, county of Chester, State of Pennsylvanla, have invented certain Improvements in Lubricating Cylinders of Elevators, (being a division of application filed October 6, 1914:, Serial N 0. 865,404,) of which the following is a specification.

The object of our invention is to provide means for properly lubricating the main cylinder of an elevator, particularly of the steam hydraulic type. I

This object we attain by locating 1n the base of the elevator a reservoir for oil and providing means for splashing the oil over the interior surface of the cylinder, as fully described hereinafter, reference being had to the accompanying drawing in which:

Figure 1 is a ide view, partly in sectlon, illustrating our invention as applied to a steam hydraulic elevator; and

Fig. 2 is an enlarged sectional view on the line 2-2, Fig. 1.

The invention, in the present instance, is applied to an elevator of the type such as illustrated in the patent granted to E. B. Ridgway on January 15, 1901, No. 666,156, but 1t will be understood that it can be applied to other types of elevators where the interior of the cylinder is to be supplied with a certain amount of lubricant.

1 is the main cylinder of the elevator, in which is mounted a piston 2 having a rod 3 which projects through the head of the cylinder and which is connected to the ordinary hoisting mechanism of the elevator. 12 is the steam cylinder located at one side of the main cylinder 1.- 13 is apipe leading from the bottom of the cylinder 12 to the top of the main cylinder 1. In this pipe is a controlling valve 14.

17 is a steam supply pipe leading from the boiler, or other suitable source of supply, to a valve casing 18 which communicates With the upper end of the cylinder 12, and also communicates through a pipe 20 with the lower end of the main cylinder 1. The valves in the two casings 14 and 18 are preferably connected together so that they will operate in unison. On the tem of the valve casing 18 is an arm 21, which is connected by a rod 22 to an arm 15 on the stem of the valve located in the casing 14;. Communlcating with Specification of Letters lfatent. Patented A131. 23, T918- 1914, Serial No. 865,404. Divided was application filed January -T22,-1 918. Seria1No.213,209.- .7 I t.

the lower end of the main cylinder is an exhaust pipe 23.

The cylinder 1 is closed at the lower end and consequently it is difficult to lubricate the walls of th cylinder. We, therefore, form a cup 26 in the'bottom of the cylinder and locate on the outside a reservoir 27, which communicates with the cup through a pipe 28. The passage of oil is regulated by a valve 29.

In order to spray the oil on the inner walls of the cylinder, we provide a steam pipe 30, which extends into the cylinder and has a downwardly projecting nozzle 31, which is directly above the cup 26. A valve 32 controls the passage of steam to the nozzle.

When it is desired to lubricate the interior of the cylinder a certain amount of oil is admitted to the cup, the steam valve is opened and the escaping steam forces the oil out of-the cup, spraying it against the side walls of the Cylinder and thoroughly lubricating the wall. The cup is preferably mounted, as shown in the drawing, and the hape will depend considerably upon the diameter of the cylinder. In some instances, air may be used instead of steam, if found desirable.

We claim:

r 1. Thecombination in a main cylinder, of an elevator; a piston therein; a cup in the bottom of the cylinder; a pipe leading to the cup for supplying said cup with a lubricant; and a pipe extending to the cup and so arranged that when fluid is turned into the pipe it will be projected into the cup and will spray the oil from the cup onto the walls of the cylinder.

2. The combination in a cylinder, of an elevator; a piston in said cylinder; an oil cup formed in the bottom of the cylinder; an oil reservoir on the outside of the cylinder; a pipe leading from aid reservoir to the cup for supplying said cup with lubricating oil; a pipe extending into the cylinder and having a nozzle located directly above the cup so that when team, or air, is admitted to the pipe the force of the steam, or air, will cause the oil to be sprayed against the side walls of the cylinder.

3. The combination in a team hydraulic elevator, of a main cylinder; a steam cylinder connected to the main cylinder; a piston in the main cylinder; a cup in the bottom of the main cylinder having curved walls; a leservoir on the outside of the cylinder; a pipe When steam is admitted to the pipe it will leading from the reservoir to the bottom of force the oil from the cup, causing the oil the cup; a valve in said pipe; a steam pipe to be sprayed against the side Walls of the 10 extending over the top of the cup and having cylinder.

5 a downwardly projecting nozzle above the In Witness whereof We aflix our signatures.

center of the cup; and a valve for controlling ELLIS B. RIDGVVAY.

V the passage of steam through the pipe so that WILLIAM H. RIDGWAY.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. 0." 

